Limit variable scope

3 files changed, 8 insertions, 7 deletions

diff --git a/src/qt/coincontroltreewidget.cpp b/src/qt/coincontroltreewidget.cpp
index f86bc0851f..88510b6168 100644
--- a/src/qt/coincontroltreewidget.cpp
+++ b/src/qt/coincontroltreewidget.cpp
@@ -16,9 +16,10 @@ void CoinControlTreeWidget::keyPressEvent(QKeyEvent *event)
     if (event->key() == Qt::Key_Space) // press spacebar -> select checkbox
     {
         event->ignore();
-        int COLUMN_CHECKBOX = 0;
-        if(this->currentItem())
+        if (this->currentItem()) {
+            int COLUMN_CHECKBOX = 0;
             this->currentItem()->setCheckState(COLUMN_CHECKBOX, ((this->currentItem()->checkState(COLUMN_CHECKBOX) == Qt::Checked) ? Qt::Unchecked : Qt::Checked));
+        }
     }
     else if (event->key() == Qt::Key_Escape) // press esc -> close dialog
     {
diff --git a/src/qt/recentrequeststablemodel.cpp b/src/qt/recentrequeststablemodel.cpp
index dac3979290..e4c857e40b 100644
--- a/src/qt/recentrequeststablemodel.cpp
+++ b/src/qt/recentrequeststablemodel.cpp
@@ -55,10 +55,9 @@ QVariant RecentRequestsTableModel::data(const QModelIndex &index, int role) cons
     if(!index.isValid() || index.row() >= list.length())
         return QVariant();
 
-    const RecentRequestEntry *rec = &list[index.row()];
-
     if(role == Qt::DisplayRole || role == Qt::EditRole)
     {
+        const RecentRequestEntry *rec = &list[index.row()];
         switch(index.column())
         {
         case Date:
diff --git a/src/qt/trafficgraphwidget.cpp b/src/qt/trafficgraphwidget.cpp
index 601d554c02..06f9c5134a 100644
--- a/src/qt/trafficgraphwidget.cpp
+++ b/src/qt/trafficgraphwidget.cpp
@@ -47,13 +47,14 @@ int TrafficGraphWidget::getGraphRangeMins() const
 
 void TrafficGraphWidget::paintPath(QPainterPath &path, QQueue<float> &samples)
 {
-    int h = height() - YMARGIN * 2, w = width() - XMARGIN * 2;
-    int sampleCount = samples.size(), x = XMARGIN + w, y;
+    int sampleCount = samples.size();
     if(sampleCount > 0) {
+        int h = height() - YMARGIN * 2, w = width() - XMARGIN * 2;
+        int x = XMARGIN + w;
         path.moveTo(x, YMARGIN + h);
         for(int i = 0; i < sampleCount; ++i) {
             x = XMARGIN + w - w * i / DESIRED_SAMPLES;
-            y = YMARGIN + h - (int)(h * samples.at(i) / fMax);
+            int y = YMARGIN + h - (int)(h * samples.at(i) / fMax);
             path.lineTo(x, y);
         }
         path.lineTo(x, YMARGIN + h);